Lignum nephriticum cup crafted from narra wood (the namesake on the province) developed opalescent colours when h2o is poured into it. These wood cups had been A significant pre-colonial and colonial industry of Naga. Naga is the native pre-colonial title of town. It's named after the narra tree (Pterocarpus https://devinyjvfq.blogginaway.com/28707435/top-latest-five-23naga-urban-news